Head of convex barrels



y 14, 1940- F. RUscH ETAL 4 2200.520

7 HEAD OF CONVEX BARRELS Filed April 22, 1957 INVENTORS.

BY #mw THEIR ATTORNEYS 0 Fritz Rzlsch may 3 Paud Sander Patented May 14, 1 940 UM-ran. STATES HEAD OF CONVEX BARRELS Fritz Riisch, Lamerbusch, near Hilgen, and Paul Sander, Levcrkusen-Wiesdorf, Germany, assignors to I. G. Farbenindustrie Aktiengesellschaft, Frankfort-on-the-Main, Germany Application April 22, 1937, Serial No. 138,322 In Germany April 23, 1936 3 Claims.

This invention relates to heads of convex barrels.

The head or bottom of convex or bulged barrels is fastened by means of a notch at the inside of the barrel walls, the so-called chime. Attempts have been made to replace the notch, for instance, by hoops above and below the head, the hoops being attached at the inside of the barrel with the head resting thereon, or by metal clamps, In this manner not so much wood is necessary, but expenses are increased and difiiculties in taking off the head for emptying the barrels arise, especially in the case where they serve for transporting powdered and paste-like materials.

The present invention relates to a device for closing convex woo-den barrels having elastic edges consisting of a Wooden head adapted to rest with its outer rim upon the, edge of the barrel, the inner diameter of the head being greater than the opening of the barrel, the size of the diameter depending on the conicity of the barrel walls and the thickness of the construction of the head, said head being secured in its position and fastened to the barrel by means of the head hoop.

The annexed drawing shows some modes of execution of such heads.

Figure I illustrates the head I of a barrel that rests with its outer rim 2 upon the edge of the barrel, the inner diameter of the head being greater than the opening of the barrel, said head being adjusted with its inner rim 3 to the bulged inside of the barrel, and which head merely by its thickness in connection with the outer hoop l of the barrel is held in place. As will be seen from the left side of Figure I, the head is cut of one piece in such a manner that the outer rim 2 overlaps and the inner rim 3 is adjusted to the bulged inside of the barrel. As shown on the right side of Figure I, the head is made of two pieces of wood, the inner piece 3 being adjusted to the bulged inside of the barrel and the outer piece 2 fixed thereon overlaps the edge of the barrel. Also in that case the head is held in place by its own thickness in connection with the outer hoop l.

According to Figure II (left side) the head is made of three thin pieces of Wood. The outer piece 2 which overlaps the edge of the barrel and the inner piece 3 which is adjusted to the bulged inside of the barrel are held together by means of a connecting piece 5. By the connecting piece 5 the necessary thickness of the head is obtained.

Figure II (right side) shows a head likewise made of two pieces of wood, the outer piece 2 overlapping the edge of the barrel, and the inner piece 3 being adjusted to the bulged inside of the barrel, the outer piece 2 being of sufiicient thickness to guarantee the position of the head in the barrel.

Figure III finally shows a preferred mode of execution of a head I according to the invention which is made of ply wood, in which the outer rim 2 overlapping and resting upon the barrel and the inner rim 3 adjusted to the bulged inside of the barrel are pressed of one piece of ply wood. 6 is a handle for withdrawing the head from the barrel after the hoop 4 has been removed. 1 is a slot in the wall of the barrel.

The new heads described above are inserted into the convex barrels by taking off the head hoop from the barrel, whereby the single staves elastically bend to the outside. For closing the barrel the head is placed into the opening whereupon the head hoop is placed in the right position.

In the case of plywood barrels the walls of which do not consist of single staves but of one piece of wood, and therefore, on taking off the head hoop do not elastically bend, the rim of the barrel is provided with slots at several places for obtaining the said flexibility. The slots are not to exceed the inner side of the head in the closed state, the width of the head hoop, respectively, since otherwise no tightness of the barrel would be obtained.

We claim:

1. A Wooden barrel having a tapered end, said end being smooth on its inside, a relatively rigid head contained within the tapered end and having its peripheryin engagement with the smooth inner surface of the tapered end, a hoop surrounding the tapered end forcing the inner surface of the tapered end into firm engagement with said periphery, said head having outwardly extending portions overlying the ends of the barrel wall to resist any tendency of the head to slide inwardly due to the action of the hoop.

to slide inwardly due to the action of the hoop.

3. A wooden barrel having a tapered end, said end being smooth on its inside, a relatively rigid one piece head pressed from plywood contained within the tapered end and having its periphery in engagement with the smooth inner surface of the tapered end, a hoop surrounding the tapered end forcing the inner surface of the tapered end into firm engagement with said periphery, said head having outwardly extending portions overlying the ends of the barrel wall to resist any tendency of the head to slide inwardly due to the action of the hoop.

FRITZ RUSCH. PAUL SANDER. 

